Influenza cases spike again at the end of 2025

Statewide hospital admissions for acute respiratory illnesses

A multiple column chart comparing COVID-19, influenza and RSV cases statewide, from hospital admissions. Influenza spikes again at the end of 2025 like it did in the beginning of that year.

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The latest data update from the Massachusetts Department of Public Health is from the week of Dec. 21-27, 2025.

Chart: KIRKLAND AN/GLOBE STAFFSource: Massachusetts Department of Public Health